class Selenium::WebDriver::Support::Color
Constants
- HEX3_PATTERN
- HEX_PATTERN
- HSLA_PATTERN
- HSL_PATTERN
- RGBA_PATTERN
- RGBA_PCT_PATTERN
- RGB_PATTERN
- RGB_PCT_PATTERN
Attributes
alpha[R]
blue[R]
green[R]
red[R]
Public Class Methods
from_hsl(h, s, l, a)
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# File lib/selenium/webdriver/support/color.rb, line 37 def self.from_hsl(h, s, l, a) h = Float(h) / 360 s = Float(s) / 100 l = Float(l) / 100 a = Float(a || 1) if s == 0 r = l g = r b = r else luminocity2 = (l < 0.5) ? l * (1 + s) : l + s - l * s luminocity1 = 2 * l - luminocity2 hue_to_rgb = lambda do |lum1, lum2, hue| hue += 1 if hue < 0.0 hue -= 1 if hue > 1.0 if hue < 1.0 / 6.0 (lum1 + (lum2 - lum1) * 6.0 * hue) elsif hue < 1.0 / 2.0 lum2 elsif hue < 2.0 / 3.0 lum1 + (lum2 - lum1) * ((2.0 / 3.0) - hue) * 6.0 else lum1 end end r = hue_to_rgb.call(luminocity1, luminocity2, h + 1.0 / 3.0) g = hue_to_rgb.call(luminocity1, luminocity2, h) b = hue_to_rgb.call(luminocity1, luminocity2, h - 1.0 / 3.0) end new r * 256, g * 256, b * 256, a end
from_string(str)
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# File lib/selenium/webdriver/support/color.rb, line 16 def self.from_string(str) case str when RGB_PATTERN new $1, $2, $3 when RGB_PCT_PATTERN new(*[$1, $2, $3].map { |e| Float(e) / 100 * 255 }) when RGBA_PATTERN new $1, $2, $3, $4 when RGBA_PCT_PATTERN new(*[$1, $2, $3].map { |e| Float(e) / 100 * 255 } << $4) when HEX_PATTERN new(*[$1, $2, $3].map { |e| e.to_i(16) }) when HEX3_PATTERN new(*[$1, $2, $3].map { |e| (e * 2).to_i(16) }) when HSL_PATTERN, HSLA_PATTERN from_hsl($1, $2, $3, $4) else raise ArgumentError, "could not convert #{str.inspect} into color" end end
new(red, green, blue, alpha = 1)
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# File lib/selenium/webdriver/support/color.rb, line 75 def initialize(red, green, blue, alpha = 1) @red = Integer(red) @green = Integer(green) @blue = Integer(blue) @alpha = Float(alpha) end
Public Instance Methods
==(other)
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# File lib/selenium/webdriver/support/color.rb, line 82 def ==(other) return true if equal?(other) return false unless other.kind_of?(self.class) [red, green, blue, alpha] == [other.red, other.green, other.blue, other.alpha] end
Also aliased as: eql?
hash()
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# File lib/selenium/webdriver/support/color.rb, line 90 def hash [red, green, blue, alpha].hash ^ self.class.hash end
hex()
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# File lib/selenium/webdriver/support/color.rb, line 103 def hex "#%02x%02x%02x" % [red, green, blue] end
rgb()
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# File lib/selenium/webdriver/support/color.rb, line 94 def rgb "rgb(#{red}, #{green}, #{blue})" end
rgba()
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# File lib/selenium/webdriver/support/color.rb, line 98 def rgba a = alpha == 1 ? '1' : alpha "rgba(#{red}, #{green}, #{blue}, #{a})" end